72 
at tlie winter or spring' training’, and sucli slireds as 
are to Le used again should, for a few minutes, be 
put into boiling water, as several of the Cater- 
pillars are concealed in them through the th'eary 
months of winter. 
Another kind of Caterpillar commences its 
ravages about the latter end of July or beginning 
of August, u^xm the foliage of the tree. It is 
quite small and long, and in colour rather green, 
spotted with brown down each side. It is very 
active, and forms an hammock, or place of retire- 
ment, similar to those already described on Apples, 
which produces the Moth, (Phalcena Padella ) 
Small societies are formed, which feed a few 
weeks, till nature calls them to retire from labour 
into their hammocks, where they are transported 
into the chrysalis state, and produce a very small 
grey Moth (a species of the Phahena), in the 
month of May, not more than a fourth the size 
of the Phalcena Padella. 
I have not yet been able to ascertain the 
period when the egg is deposited, but the first ap- 
peai'ance of the Caterpillar, which I have noticed 
for several years, has always been about the latter 
end of July and August, but it is probable that these 
may be a second cletch. These depredator's pre- 
vailed, in 1823, to such a degree upon some trees 
nailed on a north aspect, that each tree w'as nearly 
stripped of all its leaves, and spread over with a 
tenacious w'eb, and presented a miserable spectacle. 
For their Destruction. —The Mixture 
